Date: | 1971 |
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Description: | A man is driving a TD-20C Crawler Dozer on the left, and in the background another man is driving an H-90E Pay Loader. They are moving earth near the side ... |
Date: | 1972 |
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Description: | Slightly elevated view of a man operating a TD-25 on work site for the Blue Plains Water Pollution Plant. "Excavation Construction, Inc., has prime contrac... |
Date: | 1957 |
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Description: | View from front of an International heavy duty truck at Glen Canyon dam site. The truck appears to be part of the R-line. A man is sitting in the driver's ... |
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